Jump! Jump! Jump! Jump!
Annie Jump Cannon!

She was a human computer
at the Harvard College Observatory
classifying stellar spectra
she was the world's leading expert!

She created the spectral class system
we all love and use today!

Oh be a fine girl kiss me right now sweetie!
(O B A F G K M R S)
(repeat)

She classified over 500,000 spectra in her lifetime
She could do three in a minute!

Jump! Jump! Jump! Jump!
Annie Jump Cannon!